Last time out, Peterborough suffered a 1-0 defeat at home to recently-relegated West Bromwich Albion, and they'll be looking to bounce back with a win over Slavisa Jokanovic's struggling side.
The two sides haven't faced each other since 2017, where their last meeting saw the Blades score late on to secure a 1-0 win over the Posh.
Meanwhile, Peterborough boss Darren Ferguson has been discussing the wealth of midfield options at his disposal, and said: “It’s a great problem to have so many good players for central midfield. We now have great options and flexibility in that area.
“Jack brings different qualities to the other three. I didn’t intend to use him for so long against West Brom, but circumstances forced me to and he came through unscathed.
“We had to be patient with Conor and at one stage we started looking elsewhere because we didn’t think he was coming, but I’m delighted he’s finally with us."
He continued: “Last season we had eight or nine players who were always certain to be picked, but that’s not the case now. Good players will be left out for tactical reasons or for loss of form.
“But I could play all four midfielders in a diamond or in a flat four. They are definitely options.”
Take a look at the latest news round-up from the Championship, as the build-up to the post-international break action continues:
5. O'Shea out for four months
West Brom have been a dealt a major blow, with key defender Dara O'Shea set to be out of action for four months after suffering a serious knee injury in the Republic of Ireland's defeat to Portugal last week. He racked up 28 Premier League appearances for the Baggies last season. (Football Insider) Photo: Eric Alonso
6. Davies speaks out on Reds exit
Sheffield United loan man Ben Davies has claimed joining the Blades has "mentally released" him, after it dawned on him he was unlikely to make an appearance for Liverpool. He joined the Reds from Preston last January, to bolster Jurgen Klopp's injury-ravaged defence. (Mirror) Photo: Lewis Storey
7. Palmer backs Hugill to shine
Ex-West Brom striker Carlton Palmer has described the club's loan swoop for Jordan Hugill as "good business" and lauded the forward's positive impact in the dressing room. He made 31 Championship appearances for Norwich in their promotion-winning campaign last season. (This is Futbol) Photo: George Wood
8. Phillips makes bold £20m Bournemouth claim
Football pundit Kevin Phillips has claimed Celtic could have lost a £20m player on the cheap in Ryan Christie, after his £3m bargain move to Bournemouth. He joined the south coast side on the cheap due to his contract nearing its expiry. (Football Insider) Photo: Fran Santiago